<template>
  <!-- 注册页面的整体盒子 -->
  <div class="reg-container">
    <!-- 注册的盒子 -->
    <div class="reg-box">
      <!-- 标题的盒子 -->
      <div class="title-box"></div>
      <!-- 注册的表单区域 -->
      <!-- :model 指向使用表单收集数据的对象 -->
      <el-form
        style="padding: 0 25px"
        :model="regForm"
        :rules="regFormRules"
        ref="regFormRef"
      >
        <!-- 用户名  -->
        <el-form-item prop="username">
          <el-input
            prefix-icon="el-icon-user"
            placeholder="请输入用户名"
            v-model="regForm.username"
          ></el-input>
        </el-form-item>
        <!-- 密码 -->
        <el-form-item prop="password">
          <el-input
            type="password"
            prefix-icon="el-icon-lock"
            placeholder="请输入密码"
            v-model="regForm.password"
          ></el-input>
        </el-form-item>
        <!-- 确认密码 -->
        <el-form-item prop="repassword">
          <el-input
            type="password"
            prefix-icon="el-icon-lock"
            placeholder="请确认密码"
            v-model="regForm.repassword"
          ></el-input>
        </el-form-item>
        <el-form-item>
          <el-button type="primary" style="width: 100%" @click="regNewUser"
            >注册</el-button
          >

          <el-link type="info" @click="$router.push('login')">去登录</el-link>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>
export default {
  name: "Reg",
  data() {
    const validatePass2 = (rule, value, callback) => {
      if (value === "") {
        callback(new Error("请再次输入密码"));
      } else if (value !== this.regForm.password) {
        // callback()如果校验失败, 内部传入 new Error('两次输入密码不一致') 提示错误内容
        callback(new Error("两次输入密码不一致!"));
      } else {
        callback();
      }
    };
    return {
      regForm: {
        //存储数据
        username: "",
        password: "",
        repassword: "",
      },
      // 存储 数据的验证规则
      regFormRules: {
        username: [
          { required: true, message: "请输入用户名", trigger: "blur" },
          {
            pattern: /^[a-zA-Z][a-zA-Z0-9]{0,9}$/,
            message: "用户名必须是1-10的字母,且数字不能开头",
            trigger: "blur",
          },
        ],
        password: [
          { required: true, message: "请输入密码", trigger: "blur" },
          {
            pattern: /^\S{6,15}$/,
            message: "密码必须是6-15的非空字符",
            trigger: "blur",
          },
        ],
        repassword: [
          {
            pattern: /^\S{6,15}$/,
            message: "密码必须是6-15的非空字符",
            trigger: "blur",
          },
          { validator: validatePass2, trigger: "blur" },
        ],
      },
    };
  },
  methods: {
    regNewUser() {
      //2.进行兜底校验
      this.$refs.regFormRef.validate(async (valid) => {
        //valid 只有所有的表单项通过 返回true, 反之, 返回false
        if (!valid) return; //校验失败
        //校验通过 继续执行后续的操作
        console.log("ok");
        // 3.发送请求
        const { data } = await this.$axios.post("/api/reg", this.regForm);
        console.log(data);

        //3.1请求失败, 提示用户
        if (data.code !== 0) return this.$message.error(data.message);
        //3.2请求成功,提示用户
        this.$message.success(data.message);
        //4.跳转登录页
        this.$router.push("/login");
      });
    },
  },
};
</script>

<style lang="less" scoped>
.reg-container {
  background: url("@/assets/images/login_bg.jpg") center;
  background-size: cover;
  height: 100%;

  .reg-box {
    width: 400px;
    height: 335px;
    background-color: #fff;
    border-radius: 3px;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);

    .title-box {
      height: 60px;
      background: url("@/assets/images/login_title.png") center no-repeat;
    }
  }
}
</style>
